A display device is presented. The device includes: a substrate including a plurality of pixels disposed in a matrix configuration and having a thin film transistor positioned thereon; a pixel electrode connected to the thin film transistor and positioned in one of the pixels; a roof layer including an opening and an injecting hole positioned to be spaced apart from the pixel electrode on the pixel electrode, the roof layer enclosing a micro-cavity holding a liquid crystal layer; and a first supporting member formed at a first edge of the micro-cavity that is adjacent to the opening, wherein the opening is smaller than the injecting hole. The supporting members prevent any sagging of the roof layer and are formed at two edges of neighboring micro-cavities that face each other. As the supporting members are positioned where alignment material may aggregate, they reduce the aggregation that causes negative effects on the image.